Cooling and freezing apparatus



Jan. 24, 1928. 1,657,447

T. LINDSETH COOLING AND FREEZING APPARATUS Filed' Dec '7. 1926 ml IIPatented Jan. 24, 19 28,-

PATENT OFFICE.

UNIT D STATES.

THEODORE LINDSE'IB, OI ASTOBIA QBEGOH o COOLING AND IREEZING APPARATUS.

Application meanecember 7, 1926. Serial 110. 153,077.

My inventionrelates to an apparatus and a method in cooling andfreezingin which the air from the top of a cooling chamber is drawn intoapipe at the .outside of the chamber, sub'ected to a cooling process andcation and particularly 'pointed out 1n the.

appended claim.

illustrated in the accompanying drawing which represents a sectionthrough a cooling chamber with the cooling apparatus disclosed inelevation. r

Similar numerals in drawing and specification refer to similar parts. f

Separated from the cooling chamber ,1 by a wall 2 is 'a small openchamber 3 having a platform 4. On this platform is a tank 5 filled withbrine 6, and under the platform is a suitable electrically,driven-compressor and condenser 7. The evaporator coil 8 from thecompressor and condenser enters the brine 6 in the tank 5 and surroundsa tube 9 whose upper and lower ends commu-- nicate with the coolingchamber 1. The upper end 10 of the tube is funnel-aha ed to accommodatean electrically driven an 11. I'o 'tate the brine 6 and prevent the samefrom congealing under extremely lowtem- I attain these objects with themechanism platform in the condenser in peratures the pipe 12 branchesofi the tube 9 and sends a current ofair into the brine 6.

The circulation of air is indicated by'the dotted lines 13 in thecooling chamber 1. A thermostat to keep the air at a desired temperaturemay be employed if desired.

By this method the cold air' penetrates.- quickly all animal orvegetable matter, warm air pockets are eliminated, and the warm air atthe top of the cooling chamber is con- -tinually replaced by coldairfrom the botg tom of the chamber.

Having thusdescribed my invention it y will be seen that my objects havebeen accomplished and though I have shown the preferred form ofconstruction I reserve to myself the right to make minor changes,providing I do not violate the spirit and principle of my invention. a

I claim I In combination, a cooling chamber, a chamber adjacent to thecooling chamber, a adjacent chamber, a brine pllatform, a compressor andt e adjacent chamber below latform, an evaporator coil within tank onsaid said 'said rine tank and communicating with said condenser andcompressor, a conduit extending through said brine tank and sur roundedby said evaporator coil, said conduit communicating with the upper andlower ends of said cooling chamber, a pipe branchin from said conduitinto said brine tank, an a fan ositioned in the upper end of saidconduit or circulating air from the 7 cooling chamber through saidconduit and said branch'pipe;

In testimony whereof Iafiix my signature;

THEODORE LINDSETH.

